| Feature | Example | Section |
|---|---|---|
| Async iteration | for await (const x of s) | 6.6.9 |
| finally(), object rest/spread | const { a, ...r } = o | 6.6.3, 6.3.3 |
| RegExp named groups, lookbehind | /(?<year>\d{4})/ | 6.19.1, 6.19.2 |
| RegExp s flag, \p{...} | /\p{Letter}/u | 6.19.1, 6.19.3 |
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ES2018
ECMAScript 2018 (ES9)